Lock for fire-arms



(No Model.)

A. G. MOPARLAND.

LOOK FOR FIRE ARMS.

No. 370,966. Patented Oct. 4, 1887.

I I r VE TOR W572 ATTORNEYS WITNESSES: v m

N. PETERS. Pnmmm u mr. wmin m u. a

UNITED STATES PATENT OFFICE.

ALBERT C. MOFARLAND, OF UPPER LISLE, NE\V YORK.

LOCK FOR FIRE-ARMS.

SPECIFICATION forming part of Letters Patent No. 370,968, dated October 4, 1887.

Application filed May 23, 1887.

Serial No. 239,075.

(No model.)

To all whom it may concern:

Be itknown thatI, ALBERT O. ll/IOFARLAND, ofUpper Lisle, in the county of Broome, in the State of New York, have invented new and useful Improvements in Looks for Fire-Arms,

of which the following, taken in connection with the accompanying drawings, is a full, clear, and exact description.

This invention consists, chiefly, in a novel construction of the trigger-plate and lockcarrying plate formed in one piece, and materially simplifying and reducing the cost of the manufacture of the fire-arm to a minimum; and the invention also consists in a novel and simple construction of the lock mechanism and its attachment to the aforesaid plate, all as hereinafter fully described, and specifically set forth in the claims. I

In the annexed drawings, Figure 1 is a side view of the combined trigger-plate and lockcarrying plate with the lock mechanism attached thereto. Fig. 2 is a detached perspective view of the aforesaid plate. Fig. 3 is a longitudinal sectional view of the said plate, taken in a vertical plane immediately in front of the tumbler and mainspring; and Fig. 4 is a transverse section on line 90 m, Fig. 1.

Similar letters of reference indicate corresponding parts.

A represents the trigger-plate of a fire-arm. Said plate is elongated and secured to the breech body or frame B and to the stock in the usual and well-known manner. The lock mechanism has hitherto been connected to lock-plates separate and detached from the trigger-plate, and secured to the sides of the stock by screws passing transversely through the lock-plates and into the stock. This construction and combination of parts entail very much fine and expensive work in fitting the same into their requisite positions,and the lock mechanism is usually complicated and expensive.

The object of my invention is to produce an effective, durable, simple, and convenientfirearm at a minimum cost of manufacture, and to that end I form the trigger-plate and lockcarrying plate in one piece by forming the plate A with the upwardprojecting flange a on one side, as shown in Fig. 2 of the drawings, when to be applied to a single-barrel gun, and

in one piece with the upward-projecting lug b between the flanges a a, and with the post Z back of said lug. The aforesaid flanges I provide with eyes or journal-bearings c c and with contracted slots 0 0, extending from the edge (preferably the top edge) of the flanges to the eyes, for the purpose hereinafter eX- plained. The lug b is provided with sockets d, which are in range with the eyes 0 c,

H denotes the hammer,attached to the shaft 0 in the usual manner. This shaft is formed with a journal, 6, adjacent to the hammer, the tumbler 15] near the inner end of the shaft, the trunnion f at the inner side of the tumbler,and the reduced neck a between the journal 6 and tumbler t, as shown in Fig. 4 of the drawings. The upper side of the trigger-plate A is provided with a recess, 1), between the flange a and lug b, for the reception of the tumbler t. The hammer-shaft O, with its tumbler, is connected to the aforesaid flange and lug by passing the contracted neck a of the shaft through the slot 0' and into the eye 0 of the flange a, and simultaneously inserting the trunnion f into the socket d of the lug b, and the tumbler it into the recess 1) of the plate A, and in the latter operation the journal 6 is carried into the eye 0, and is retained therein by the lateral confinement of the tumbler in the recess v, and by the transverse position and longer diameter of the neck it across the contracted slot 0, into which portion said neck is turned by turning the shaft Ointo its normal position.

The tumbler t,I form with an elongated bearing, h, on its top, and lengthwise on said bearing presses one end of the mainspring u, the opposite end of which is locked on a pin, 0, which is inserted in the post Z, and projects at opposite sides thereof, so as to hold both springs in a doubie barreled gun. The elongated bearing of the tumbler affords a hold for the mainspring immediately back of the ham mer-shaft 0 when the gun is discharged, and thus causes the hammer to rebound. The tumbler is provided with the usual notches for the engagement of the sear i,which I form integral with the trigger T. A spring, 0, interposed between the trigger and a pin, .9, inserted in the post Z, serves to depress the trigger, so as to cause the sear t to spring into engagement with the notch of the tumbler when the latter is turned by the cooking of the hammer, as shown by full lines in Fig. 3 of the drawings.

It will be observed that the entire lock mechanism is carried on the trigger-plate A and in a mortise in the under side of the stock; hence by removing the screws which attach the plate A to the breech-body B and the usual tang, I, to the stock, the stock, with the trigger-plate and lock mechanism, can be separated at once from the breech-body.

Having described 'my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In a double-barrel-gun lock, the triggerplate formed with side flanges, a lug and a post between said flanges, journal-bearings in the flanges and lug for the reception of the hammer-shaft, and a pin passing through the post and projecting at opposite sides thereof for the attachment of the mainsprings, substantially as described and shown.

f, and the reduced neck nbetween the journal and tumbler, substantially as described and shown.

3. The combination of the triggerrplate A,

provided with the flanges a, lug b, and post Z,

all formed in one piece, and with the eyes 0 c in the said flanges and socket d in the lug, the pins 1' s, inserted in the post, the hammershaft 0, formed with the journal 6, tumbler t, and trunnion f, the trigger T, formed with the sear t, the spring 0, interposed between the pin 8 and trigger, and the mainspring u, interposed between the'pin r and tumbler t, substantially as described and shown.

In testimony whereof I have hereunto signed my name and affixed my seal, in the presence of two attesting witnesses, at Syracuse, in the county of Onondaga, in the-State of New York, this 20th day of May, 1887.

H. P. DENISON, O. BENDIXON. 

